Pull wheel hub



FIG. 1 is a perspective view of a pull wheel hub showing our new design, the broken line showing of a pull wheel is for illustrative purposes only and forms no part of the claimed design;

FIG. 2 is a front elevational view;

FIG. 3 is a rear elevational view; and,

FIG. 4 is an elevational view thereof. 

The ornamental design for a pull wheel hub, as shown and described. 